Only the First Graph is a Graph of a Function
What are Functions?
A function is an expression, rule, or law in mathematics that describes a connection between one variable (the independent variable) and another variable (the dependent variable).
Solution:
(i) Yes the 1st Graph is a graph of a function
Because, for every value of x there is an unique value of y
(ii) No the 2nd Graph is not a graph of a function
Because, there are two values of y associated with single value of x
(iii) No the 3rd Graph is not a graph of a function
Because, there are two values of y associated with single value of x
(iv) No the 4th Graph is not a graph of a function
Because, there are two values of y associated with single value of x
To learn more about <u>Functions</u> from the given link
brainly.com/question/22340031
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